Check your change and take a look down the back of the sofa after a rare Royal Mint 20p coin sold for 450 times its face value this week. The 20p piece is a “mule” coin dating from 2008 and was minted ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American ... 20p piece is a “mule” coin dating from 2008 ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American ... piece is a rare “mule” coin dating from 2008, ...